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Sun C, Liu H, Qi P, Zhu L, Guo L, Lin L, Liu W. Anomalous transmission and Anderson localization for alternating propagated and evanescent waves at the deep-subwavelength scale. NANOSCALE 2023; 15:12907-12914. [PMID: 37435813 DOI: 10.1039/d3nr01670f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Deep-subwavelength features have a minimal impact on wave transport in all dielectric systems; thus the homogenization approach was commonly adopted. Recently, the breakdown of effective medium theory (EMT) for the incident wave near the total reflection (TR) angle was demonstrated in a deep-subwavelength dielectric multilayer. Additionally, anomalous transmission was reported at angles exceeding the TR angle when introducing disorder and was attributed to Anderson localization. Here we firstly demonstrated that the alleged anomalous transmission also occurs in the disorder-free case, illustrating that attributing anomalous transmission to Anderson localization deserves a more in-depth study. To clarify the underlying physics of this asserted anomalous transmission, Anderson localization and broken EMT, the incident angle dependent reflectivity and modes for ordered and disordered deep-subwavelength multilayers were investigated systematically. Actually, the EMT is still convincing and the anomalous transmission is reasonable after a simple correction. However, the anomalous transmission is more accessible and the permittivity correction is more imperative in the disordered system due to the Anderson localization. These findings can be expanded to other wave systems such as acoustic waves and matter waves, providing insight into EMT and deepening our understanding of the intriguing transport phenomena in deep subwavelength systems.
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Affiliation(s)
- Changlin Sun
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - Haiyi Liu
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Pengfei Qi
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Liguo Zhu
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - Lanjun Guo
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Lie Lin
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Weiwei Liu
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
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Röhlig D, Kuhn E, Thränhardt A, Blaudeck T. Simultaneous occurrence and compensating effects of multi‐type disorder in two‐dimensional photonic structures. NANO SELECT 2023. [DOI: 10.1002/nano.202300021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023] Open
Affiliation(s)
- David Röhlig
- Technische Universität Chemnitz Institute of Physics Chemnitz Germany
| | - Eduard Kuhn
- Technische Universität Chemnitz Institute of Physics Chemnitz Germany
| | - Angela Thränhardt
- Technische Universität Chemnitz Institute of Physics Chemnitz Germany
| | - Thomas Blaudeck
- Center for Microtechnologies (ZfM) Technische Universität Chemnitz Chemnitz Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN) Technische Universität Chemnitz Chemnitz Germany
- Fraunhofer Institute for Electronic Nano Systems (ENAS) Chemnitz Germany
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